During the late 18th century the conflict between using Alternating current and Direct Current lead an era of Inventions and commercialization of electrical energy and applications using the electrical energy. Thomas Alva Edison (Feb'11,1847-Oct'18,1931) Inventor and businessman having 1093 patents, He always invented for necessity, with the object of devising something new that he could manufacture. The basic principles he discovered were derived from practical experiments,